Fig. 1: Structure and composition at RP faults in BaCeO3.
From: Atomic-scale observation of premelting at 2D lattice defects inside oxide crystals
a–d A pair of HAADF and BF STEM images a, b is provided along with the enlargements c, d, indicating the image contrast for the presence of faults, as denoted by yellow arrows. The overall crystal structure of BaCeO3 is shown in the right-hand column. e The crystal structure of BaCeO3 is presented. f, g These two lower-magnification images demonstrate the various distribution of faults in a grain. h The image contrast of the fault is not clearly distinguished in the margined image. i However, the atomic-column-resolved EELS mapping directly demonstrates the two consecutive Ba−Ba columns at the fault plane. j An atomic array illustration along with the map is also provided for verification.
